B08_Attachment_1_140P8424Q0069_Specifications.pdf

SPECIFICATIONS

FOR

Tule Lake National Monument

Repaving and Adding Additional Asphalt to the Tule Lake Visitor Center Driveway Access

RFQ # 140P8424Q0069

NATIONAL PARK SERVICE

Prepared by:

Facility Management

Tulelake National Monument

CONTRACT SPECIFICATIONS

Repaving and Adding Additional Asphalt to the Tule Lake Visitor Center

Driveway Access

July 2024

TABLE OF CONTENTS

DIVISION 1

01 01 00 - SUMMARY OF WORK Page 3

01 27 00 - DEFINITION OF BID ITEMS Page 12

01 43 00 – CONTRACTOR QUALITY CONTROL Page 13

DIVISION 2

02 72 50- HOT BITUMINOUS CONCRETE PAVEMENT PAGE 16

0 17 70- PROJECT CLOSEOUT PAGE 23

Appendix

Contractor’s Quality Control Daily Report Log Page 25

SECTION 01 01 00

GENERAL REQUIREMENTS

PART 1 GENERAL

DESCRIPTION OF WORK: The work of this contract consists of repaving and adding additional asphalt to the driveway access from California State Highway 139 into the new temporary visitor center. The new asphalt driveway shall be approximately 20' W X 95' L and shall include excavating the existing road to allow for placement of 4-inch compacted aggregate and one 2-inch lift of HACP placed to patch the grade per the attached profile drawing (3.1%). The asphalt shall extend approximately 95 feet from the edge of CA139 into/on top of the existing gravel access drive.

1.2 All work will be performed under a single contract.

1.3 LOCATION

Project Location: Tule Lake National Monument, Visitor Center, 44340 Hwy 139, Tulelake, CA 96134

PART 2 EXISTING UTILITIES

-NIC

PART 3 CONTRACTOR’S USE OF PREMISES

3.1 CONSTRUCTION CAMP: The establishment of a camp on the premises will not be permitted.

3.2 CLOSURES: There will be no closures of the public areas during construction. The contractor shall provide barriers, signage, and markings to isolate the construction area from the public. The contractor shall at all times safely conduct his operations and to ensure the least inconvenience to the public and park personnel.

3.3 STORAGE - STAGING AREAS: Confine storage of materials to the immediate project area and the parking lot. Limits of use and control shall be subject to Contracting Officer's approval. The contractor shall provide all storage units and security for materials and equipment stored on site.

3.4 FIELD OFFICE: Should the Contractor elect to utilize a field office on the project, the size, location, and construction shall be subject to the Contracting Officer's approval.

3.5 PRESERVATION OF NATURAL FEATURES: Confine all operations to the work limits of the project. Prevent damage to natural surroundings. Operations of equipment within un-disturbed areas or outside the road corridor is strictly prohibited. Restore damaged areas, repairing or replacing damaged trees and plants, at no additional expense to the Government.

Do not fasten ropes, cables, or guys to existing trees.

3.6 HAULING RESTRICTIONS: Comply with all legal load restrictions in the hauling of materials. Load restrictions on park roads are identical to the state load restrictions with such additional regulations as may be imposed by the Park Superintendent. Information regarding rules and regulations for vehicular traffic on park roads may be obtained from the Office of the Park Superintendent. A special permit will not relieve the Contractor of liability for damage, which may result from the moving of equipment.

3.7 HOUSEKEEPING: Keep projects neat, orderly, and in a safe condition at all times. Store and use equipment, tools, and materials in a manner that does not present a hazard.

Immediately remove all hazardous rubbish. Do not allow rubbish to accumulate. Provide on-site containers for the collection of rubbish and dispose of it at frequent intervals during the progress of work.

Do not leave food, food waste, or wrappers unattended at any time, and remove from the project site at the end of each workday. Provide enough containers for collecting construction debris and construction materials to be recycled. Provide individually marked containers for recycling personal items, such as aluminum cans, newspapers, glass, plastic, and corrugated cardboard. These items are to be recycled by the Contractor.

Wet down dry materials and rubbish to prevent blowing dust. Utilize excavated material as soon as possible.

Do not bury refuse inside the park. Dispose of waste materials legally at public or private dumping areas outside the park. Unless otherwise specified, all removed material becomes the property of the Contractor and shall be disposed of outside the park.

3.8 EQUIPMENT:

A. All equipment shall be thoroughly pressure washed before transport to the park to prevent unintentional importation of seed or soil materials. The contractor shall allow time for COR to inspect equipment to ensure that it is clean before entering the Park.

B. Check equipment each workday for leaks. Do not operate or store equipment and vehicles leaking oil, gas, or anti-freeze within the Park. Do not drain oil, hydraulic fluid, antifreeze, or other chemicals, onto the ground. Do not refuel or maintain trucks at the project site.

Equipment may be refueled and maintained at the project site provided the work is done in an upland area located at least 100 feet from streams or other bodies of water.

C. Equip all motor vehicles at all times with mufflers that are in good working order and that are in constant operation to prevent excessive or unusual noise, fumes, or smoke;

Eliminate vehicle idling whenever possible.

3.9 AIR AND WATER POLLUTION CONTROL:

Take all necessary reasonable measures to reduce air and water pollution by any material or equipment used during construction. Do not dispose of volatile wastes or oils in storm or sanitary drains. Do not allow waste materials to be washed into streams or bodies of water.

Due to the area of disturbance of less than 1.0 acre, this project falls under the waiver preparation, and submittal of a Storm Water Pollution Prevention Plan is not required. This DOES NOT alleviate the contractor’s responsibility for installing the required measures for pollution prevention as best management practices dictate and as outlined in the waiver.

PART 4 SPECIAL CONSIDERATIONS

4.1 All facilities, trails, and public accesses at each of the project locations shall remain open and available to the public. The contractor shall maintain at least one minimum 12-foot width travel lane access for vehicles at all times.

PART 5 COMMENCEMENT, PROSECUTION, AND COMPLETION

5.1 The Contractor shall commence work within 25 calendar days after the date of receipt of the Notice to Proceed. Construction work shall progress in an orderly and diligent manner and shall be completed within 60 calendar days from the Construction Notice to Proceed.

PART 6 EXAMINATION OF THE SITE

6.1 Offeror is urged to visit the job sites and examine existing conditions before submitting bids.

A pre-bid meeting will be scheduled prior to the close of the solicitation. Offerors will be held to have the same knowledge concerning the site and the ground conditions as if they had inspected the job site.

PART 7 ABBREVIATIONS

7.1 The following list of abbreviations, which may be used in the Construction Specifications or Special Provisions, refer to the organizations and specifications of the organizations listed below:

AASHTO American Association of State Highway and Transportation Officials

ACI American Concrete Institute

AISC American Institute of Steel Construction

AI Asphalt Institute

ANSI American National Standards Institute

ASTM American Society for Testing and Materials

CalTrans California Transportation

CBC California Building Code

FHWA Federal Highway Administration

FP-14 Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects

MUTCD Manual on Uniform Traffic Control Devices

NEC National Electric Code

NEMA National Electrical Manufacturers Association

NFPA National Fire Protection Association

NIOSH National Institute of Occupational Safety and Health

NPS National Park Service

OSHA Occupational Safety and Health Administration

PCA Portland Cement Association

UBC Uniform Building Code

UL Underwriters Laboratories, Inc.

PART 8 FIELD ENGINEERING

8.1 LAYOUT OF WORK: The Contractor shall lay out the work in consultation with the Contracting Officer's Representative. Locations on drawings are conceptual and subject to final adjustment on site as the work progresses.

8.2 FIELD CONTROLS: Existing conditions may vary from those shown in sketches. Field verify locations, dimensions, materials, and elevations before beginning construction.

8.3 SPECIFICATIONS: In addition to the project specifications, reference is made to the California Department of Transportation Standard Specifications for Construction, 2015 (hereafter referred to as "Caltrans Specifications").

PART 9 ACCIDENT PREVENTION

9.1 DESCRIPTION: The work of this section consists of establishing and implementing an effective accident prevention program and providing a safe environment for all personnel and visitors.

9.2 SUBMITTALS:

A. ACCIDENT PREVENTION PROGRAM: At the preconstruction conference submit for approval an accident prevention program. The program shall include:

Name of the responsible supervisor to carry out the program.

Weekly and monthly safety meetings.

First aid procedures.

Training, both initial and continuing.

Planning for possible emergency situations.

Certificates: Provide certificates from a mechanic that all mechanical equipment has been inspected and meets OSHA requirements.

B. TEST REPORTS: Submit a copy of test reports, as required by OSHA, for personnel working with hazardous materials.

C. MEETING AND INSPECTION REPORTS: Submit a report of safety meetings and inspections.

9.3 QUALIFICATIONS OF EMPLOYEES:

A. Ensure that employees are physically qualified to perform their assigned duties in a safe manner.

B. Do not allow employees to work whose ability or alertness is impaired because of drugs, fatigue, illness, intoxication, or other conditions that may expose themselves or others to injury.

C. Operators of vehicles, mobile equipment, hoisting equipment, and hazardous plant equipment shall be able to understand signs, signals, and operating instructions, and be capable of operating such equipment. Provide operating instructions for all equipment.

D. Newly hired operators shall be individually tested by an experienced operator or supervisor to determine if they are capable of safely operating equipment.

9.4 ACCIDENT REPORTING: The Contractor shall report all accidents to the Contracting Officer as soon as possible and assist the Contracting Officer and other officials as required in the investigation of the accident.

9.5 FIRST AID FACILITIES: Provide adequate facilities for the number of employees and the type of construction at the site.

9.6 PERSONNEL PROTECTIVE EQUIPMENT: Meet the requirements of NIOSH and MSHA, where applicable, as well as ANSI.

9.7 EMERGENCY INSTRUCTIONS: Post telephone numbers and reporting instructions for ambulance, physician, hospital, fire department, and police in conspicuous locations at the work site.

9.8 PROTECTIVE EQUIPMENT:

A. Inspect personal protective equipment daily and maintain it in a serviceable condition.

Clean, sanitize, and repair, as appropriate, personal items before issuing them to another individual.

B. Inspect and maintain other protective equipment and devices before use and on a periodic basis to ensure safe operation.

C. It is the Contractor's responsibility to require all those working on or visiting the site to wear hard hats and other necessary protective equipment at all times. Change liners before reissuing hats.

9.9 SAFETY MEETINGS: As a minimum, conduct weekly 15-minute "toolbox" safety meetings. These meetings shall be conducted by a foreman and attended by all construction personnel at the work site.

9.10 Hazardous Material Action: It shall be the responsibility of all operators and contractors, functioning within the park to properly clean up, mitigate, and remediate if necessary, all unauthorized discharges of hazardous materials or non-hazardous chemical and biological products released from the fleet and/or other support vehicles or stationary sources.

Response shall be consistent with guidelines established by federal, state, and local regulations, and as outlined within the operator's Safety or Hazardous Materials Business Plan.

A. If a spill, leak, or other release occurs, the operator shall as soon as possible, without impeding cleanup, notify the National Park Service Emergency Dispatch.

B. All vehicles with a load rating of two (2) tons or greater should carry, at minimum, enough absorbent materials to effectively immobilize the total volume of fluids contained within the vehicle. Sand or soils are not approved absorbent materials.

C. Vehicles and operators transporting hazardous materials must be DOT certified and/or registered, and operators must be state-licensed and knowledgeable of local emergency response and personal safety protocol.

D. Oil leaks from the various pieces of equipment shall be repaired immediately upon discovery. Repairs shall be performed at the site of discovery or breakdown. Oil pans and absorbent material shall be in place prior to beginning repair work.

E. Oil pans and absorbent materials shall be used to prevent leaks, spills, and draining of petroleum fluids from falling onto bare ground and paved surfaces during servicing of equipment. Soils contaminated with such fluids shall be dug up and placed in appropriate safety containers, removed from the Park, and disposed of according to California State regulations.

F. Puddles of oil, gas, hydraulic, or other similar petroleum-based fluids of one (1) gallon or more or affected areas of more than one (1) square foot shall be considered "Road Damage" on paved surfaces.

G. Loss of any petroleum fluid of forty (40) gallons or greater shall be reported through the 911 emergency phone system immediately to initiate emergency response actions.

Clean-up shall be according to state regulations.

PART 10 PRE-CONSTRUCTION CONFERENCE:

10.1 PRECONSTRUCTION CONFERENCE: Before the start of construction, the Contracting Officer will arrange an on-site meeting with the Contractor. The meeting agenda will include the following:

1. Claims procedures

2. Correspondence procedures

3. Design Process

4. Designation of responsible personnel

5. Labor standards provisions

6. Payroll reports

7. Changes

8. Payments to Contractor

9. Subcontractors

10. National Park Service regulations

11. Accident prevention program (including name of responsible supervisor)

12. Accident reporting

13. Documents required under the contract

14. Park rules and regulations

15. Saturday, Sunday, holiday and night work

16. Safety program (compliance with the "Accident Prevention" clause of the General

Provisions)

17. Tentative construction schedule

18. Submittal of shop drawings, project data, and samples

19. Relationship of Division 1 to other divisions

20. Spill Response Plan

PART 11 SUBMITTALS

11.1 DESCRIPTION: The work of this section consists of submittal requirements before and during construction.

11.2 SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES:

A. As specified in the individual sections, forward submittals to the Contracting Officer at least 15 days before the need for approval.

B. After approving submittals ls, the Contracting Officer will return one copy to the Contractor.

C. If submittals are not approved; the Contracting Officer will return all copies to the Contractor with reasons for rejection. Resubmit, identifying changes.

D. Any work done before approval shall be at the Contractor's own risk.

11.3 PROGRESS SCHEDULES: -NIC

PART 12 TEMPORARY SERVICES

12.1 DESCRIPTION: The work of this section includes providing temporary services required for the Contractor's performance of the work of this Contract.

12.2 SANITARY FACILITIES: The contractor shall provide temporary restrooms for staff use.

12.3 DRINKING WATER: Provide a sufficient quantity of good drinking water in sturdy, sanitary containers. Containers shall be located, so they would not be subjected to contamination.

Water shall be changed at least once a day.

12.4 POWER: Contractor shall provide temporary generator power if required for work. Provide fuel containment, spill prevention, and clean-up procedures as required. Provide mufflers and otherwise limit noise to 95 decibels. Operate during construction work periods only.

12.5 FIRE PREVENTION AND PROTECTION:

A. Hazard Control: Take all necessary precautions to prevent fire during construction.

Provide adequate ventilation during the use of volatile or noxious substances.

B. Equipment Required: UL Class 2A, 2-1/2-gallon, water-type, stored pressure extinguisher and UL Class 10, Type I, 15-pound, C. Carbon dioxide extinguisher. Furnish a minimum of one of each type of extinguisher for each area of work. Travel distance from any workstation to the nearest extinguisher shall not exceed 100 feet.

D. Spark Arresters: Equip all gasoline or diesel-powered equipment used in potential forest or grass fire locations with spark arresters approved by the U.S. Forest Service.

Exceptions will be made for diesel equipment equipped with a turbocharger. Written determinations of areas and periods of potential fire hazard will be issued by Contracting Officer.

PART 13 PROTECTION OF PUBLIC

13.1 Construction and traffic control signing shall be installed in accordance with Caltrans Standard Specifications, Section 12, and the Manual of Uniform Traffic Control Devices.

Provide barricades on each side of any excavation to warn any park visitors in the vicinity of the public restrooms.

PART 14 PROJECT CLOSEOUT

14.1 DESCRIPTION: The work of this section includes the final cleanup, closeout submittals, final inspection procedures, and safety precautions.

14.2 CLEANING: Remove all tools, equipment, surplus materials, and rubbish. Sweep paved areas and restore natural areas to their original condition. At the time of final inspection, the project shall be thoroughly clean and ready for use.

14.3 SUBSTANTIAL COMPLETION AND FINAL INSPECTION: Submit written certification that the project is substantially complete, and a final inspection is requested. The Contracting Officer will make an inspection within 10 days of receipt of the request.

A. When the Contracting Officer determines that the work is substantially complete, he will prepare a list of deficiencies to be corrected before final acceptance and issue a Letter of Substantial Completion. The contractor shall complete the work described on the list of deficiencies within 30 calendar days, as weather permits. If the Contractor fails to complete the work within this time frame, the Contracting Officer may replace, repair, or remedy the work with an appropriate reduction in the contract price.

B. If the Contracting Officer determines that the work is not substantially complete, he will immediately notify the Contractor in writing, stating reasons. After completing work, the Contractor shall resubmit certification and request a new final inspection.

14.4 CONFORMITY WITH CONTRACT REQUIREMENTS: Plan dimensions and contract specification values are the values to be strived for and complied with as the design values from which any deviations are allowed. Perform work and provide material that is uniform in character and reasonably close to the prescribed value or within the specified tolerance range.

The Government may inspect, sample, or test work at any time before final acceptance of the project. If the Government tests work, copies of test reports are furnished to the Contractor upon request. Government tests may or may not be performed at the work site. Do not rely on the availability of Government test results for process control.

14.5 ACCEPTANCE OF THE WORK: The primary method of acceptance is specified in each Section of work. However, work may be rejected at any time it is found by any of the methods not to comply with the contract. Remove, repair, or replace work that does not conform to the contract, or to prevailing industry standards where no specific contract requirements are noted. Removing, repairing, or replacing work; providing temporary traffic control; and any other related work to accomplish conformity will be at no cost to the Government. After all deficiencies have been corrected, a Letter of Acceptance will be issued.

END OF SECTION

SECTION 01 27 00

DEFINITION OF BID ITEMS

PART 1 GENERAL

DESCRIPTION

The intent of this section is to explain, in general, what is and what is not included in a bid item, and the limits or cut-off points where one bid item ends and another begins. If no bid item exists for a portion of the work, include the costs in a related bid item.

BID ITEM NO. 1- General Requirements: Include mobilization, materials testing, and work elements not included in other Bid Items.

BID ITEM NO. 2 – Bituminous Concrete Pavement: The new asphalt driveway shall be approximately 20' W X 95' L. It shall include excavating the existing road to allow for the placement of 4-inch compacted aggregate and one 2-inch lift of HACP placed to patch the grade per the attached profile drawing (3.1%). The asphalt shall extend approximately 95 feet from the edge of CA139 into/on top of the existing gravel access drive. Payment includes all material, labor, tools, and equipment to prepare subgrade; backfill, compaction of aggregate base course, placement, compaction, and testing of bituminous pavement. Bituminous Concrete Pavement shall be paid at the contract unit price per ton of asphaltic concrete material.

Measurement and payment shall be at the contract lump sum price for the work.

PART 2 PRODUCTS Not used.

PART 3 EXECUTION Not used.

SECTION 01 43 00

CONTRACTOR QUALITY CONTROL

PART 1 GENERAL

1.1 DESCRIPTION

A. The work of this section consists of preparing and executing a quality control program.

1.2 SUBMITTALS

A. Quality Control Plan: At the time of the preconstruction conference, submit for approval a written Contractor Quality Control (CQC) plan. If the plan requires any revisions or corrections, the Contractor shall resubmit the plan within 10 days. The Government reserves the right to require changes in the plan during the contract period as necessary to obtain the quality specified. No change in the approved plan may be made without written concurrence of the Contracting Officer. The plan shall include:

1. A list of personnel responsible for quality control and assigned duties. Include each person's qualifications.

2. A copy of a letter of direction to the Contractor's quality control supervisor outlining assigned duties.

3. Names and descriptions of laboratories to perform sampling and testing, and samples of proposed report forms.

4. Methods of monitoring and controlling environmental pollution and contamination as required by regulations and laws.

5. Methods of performing, documenting, and enforcing quality control of all work.

B. Daily Submittals: Submit a Daily Quality Control Report showing all inspections and tests on the first workday following the date covered by the report. Electronic files (MS Word) of the attached Daily Report and Testing Report forms will be provided to the contractor prior to the notice to proceed to be issued.

C. Tests: Submit triplicate copies of complete test results not later than three calendar days after the test was performed. Submit failing test results and proposed remedial actions within four hours of noted deficiency.

D. Off-Site Inspection Reports: Submit prior to shipment.

E. Progress Payments: If the CQC plan and Daily Quality Control Reports are not submitted in a timely manner, the Contracting Officer may retain an appropriate amount of the applicable progress payment.

1.3 QUALITY ASSURANCE

A. General: Except for tests or other items of work specified to be performed by the Government, the quality of all work shall be the responsibility of the Contractor. Inspect and test all work often enough to ensure that the quality of materials, workmanship, construction, finish, and functional performance is in compliance with applicable specifications and drawings.

B. Quality Control Staff: The Contractor's job supervisory staff may be used for quality control, supplemented as necessary by additional technicians. The Contractor's designated Quality Control Supervisor shall be employed full-time at the project site whenever contract work is in progress.

C. Testing Laboratory and Equipment.

1. All measuring devices, laboratory equipment, and instruments shall be calibrated at established intervals against certified standards in accordance with NBS requirements. The contractor shall arrange and pay for tests to be made by an independent testing laboratory acceptable to the COR. Promptly submit five copies of test reports to the COR.

2. Upon request, measuring and testing devices shall be made available for use by the Government for verification tests.

3. The testing laboratory organization shall be experienced in the type of testing work to be done.

PART 2 PRODUCTS Not used.

PART 3 EXECUTION

3.1 ON-SITE CONTROL

A. Notify the Contracting Officer at least 24 hours in advance of the initial and follow-up phases.

B. Preparatory: Perform before beginning each feature of work.

1. Review control submittal requirements with personnel directly responsible for the quality control work.

2. Ensure that provisions have been made for field control testing.

3. Examine the work area to ensure that all preliminary work has been completed.

4. Verify all field dimensions and advise the Contracting Officer of discrepancies.

5. Ensure that necessary equipment and materials are at the project site and that they comply with approved shop drawings and submittals.

C. Initial: As soon as work begins, inspect and test a representative portion of a particular feature of work for quality of workmanship. Review control-testing procedures to ensure compliance with contract requirements.

D. Follow-up: Inspect and test as work progresses to ensure compliance with contract requirements until completion of work.

3.2 DOCUMENTATION

A. Maintain Daily Quality Control Reports (sample attached) of quality control activities and tests.

Daily Quality Control Reports may not be substituted for other written reports required under the General Provisions, such as Disputes, Differing Site Conditions, or Changes.

3.3 ENFORCEMENT

A. The Contractor shall stop work on any item or feature pending satisfactory correction of any deficiency noted by the quality control staff or the Contracting Officer. Construction shall not proceed on any feature of work containing uncorrected work.

PART 4 MEASUREMENTS AND PAYMENT

A. Payment will be included in the General Requirements bid item as described in Section 01270 Description of Bid Items.

SECTION 02725

HOT BITUMINOUS CONCRETE PAVEMENT

PART 1 GENERAL

1.1 DESCRIPTION

The work of this section consists of constructing one or more surface courses (lifts) of hot asphalt (bituminous) concrete pavement (HACP) composed of a mixture of aggregate and bituminous material placed on a prepared base, compacted to a specified density and finished to a specified smoothness. See drawings in Appendix A for general locations.

1.2 QUALITY ASSURANCE

Testing required to determine compliance with the work of this section will be the responsibility of the Contractor. See Caltrans Standard Specifications Section 39. An independent testing laboratory shall be used to sample and test asphalt concrete.

1.3 SUBMITTALS

A. As specified in Section 01010.

B. Job-Mix Formula: Before producing HACP, submit a job-mix formula for each mixture to the Contracting Officer for approval. Should a change in the source of material be proposed, or should a job-mix formula prove unsatisfactory, submit a new job-mix formula for approval.

1. Each job-mix formula submitted shall propose definite single values for:

a. Target values for the percentage of aggregate passing each specified sieve size for the aggregate blend, and

b. The percentage of asphalt binder to be added based on the total weight of the mixture, and the percentage of any stabilizing agent such as lime, Portland cement, or antistrip agent.

c. Material Safety Data Sheets on the asphalt binder, any asphalt modifiers used, stabilizing agents, supplemental aggregates, or antistrip additives.

2. Meet Caltrans Specifications Section 39– Hot Mix Asphalt, ½” or ¾” Type A coarse-graded Hot Mix Asphalt.

C. Certificates:

1. Certification from supplier that asphalt cement is of correct type and meets requirements of this section. Two copies will be required for each load.

2. Two copies of certified weight ticket from supplier for each load of asphalt cement.

1.4 PROJECT CONDITIONS

1. Apply mixture only during hours of daylight; when air temperature is 50 degrees F or higher;

when surfaces to be paved are dry and free of frost, snow, or ice; and when precipitation is not imminent.

2. Where the roadbed will be open to public traffic before a pavement course is installed, a water truck will be on-site at all times and be used as needed to minimize dust.

1.5 PREPARING CONFERENCE

Supervisory personnel of the Contractor, including any subcontractors who are to be involved in the paving work, shall meet with the COR at a mutually agreed time to discuss methods of accomplishing all phases of the paving work.

PART 2 PRODUCTS

2.1 HACP AGGREGATE

A. The aggregate shall meet the general and physical requirements of Caltrans Section 39 aggregate gradation tables for Type A Hot Mix Asphalt.

B. The aggregates for the mixture shall be graded and combined in such proportions that the resulting composite blend meets the requirements of the job-mix formula.

C. Up to 15 percent Recycled Asphalt Pavement (RAP) by mass may be used.

2.2 ASPHALT BINDER

A. Asphalt binder content must meet the Type A HMA Mix Design in Section 39 of the Caltrans Standard Specifications.

B. The asphalt cement used on the project shall be of the same grade and from the same supplier as that used and approved in the job-mix formula.

PART 3 EXECUTION

3.1 SURFACE PREPARATION

A. Apply tack coat (paint binder, asphaltic emulsion) as specified in Section 39 of the Caltrans Standard Specifications to all vertical surfaces of existing pavement, curbs, gutters, and construction joints in the surfacing against which additional material is to be placed, or between lifts of HACP. Paint binder (tack coat) shall be applied in one application at a rate of from 0.02-gallons to 0.05-gallons per square yard of surface covered and with the emulsified asphalt temperature between 285 °F and 350 °F.

3.2 EQUIPMENT

A. Plant, hauling, placing, and rolling equipment shall be adequate to ensure uniformity and continuity of operations and be in good operating condition capable of performing according to manufacturer's specifications.

B. Hauling Equipment: Trucks used for hauling bituminous mixtures shall be in good operating condition and have tight, clean, smooth metal beds that have been thinly coated with a minimum amount of paraffin oil, lime solution, or other approved material to prevent the mixture from adhering to the beds. Do not use diesel oil. Drain excess coating material before loading. Each truck shall have a cover of canvas or other suitable material of such size as to protect the mixture from the weather.

C. Bituminous Pavers:

1. Bituminous pavers shall be self-contained, power-propelled units, provided with an activated screed or strike-off assembly, heated if necessary, and capable of spreading and finishing courses of bituminous plant mix material in widths applicable to the specified typical section and thicknesses shown on the drawings.

2. The paver shall be equipped with a receiving hopper having sufficient capacity for a uniform spreading operation. The hopper shall be equipped with a distribution system to place the mixture uniformly in front of the screed.

3. The paving machine shall be equipped with an automatic control system that will control the elevation of the screed and which is automatically actuated by a system of sensor-operated devices that sense and follow reference lines or surfaces on one or both sides of the machine as required.

4. Maintain the screed at the proper elevation at each end by controlling the elevation of one end and automatically controlling the transverse slope or by controlling the elevation of each end independently, as directed.

5. The automatic control system shall be capable of working with one of the following devices:

a-type device at least 30 feet in length; short ski or short shoe; at least 5,000 feet of control line and stakes.

6. When the control line is to be used, it shall be maintained taut and to the grade and alignment established.

7. The screed or strike-off assembly shall effectively produce a finished surface of the required evenness and texture without tearing, shoving, or gouging the mixture. The paver shall be capable of being operated at forward speeds consistent with satisfactory laying of the mixture.

D. Rollers:

1. Rollers shall be of the steel-wheel, vibratory, pneumatic tire type, or combination, capable of reversing without backlash. Steel-wheel rollers other than vibrating shall be capable of exerting a force of not less than 250 pounds per inch of width of the roller. Vibrating steel-wheel rollers shall have a minimum gross static weight of 6 tons.

2. Pneumatic-tired rollers shall be tandem, or multiple axle, multiple wheel type, have smooth tread tires of equal size that will provide a uniform compaction pressure for the full width of the roller, be fully skirted to reduce tire heat loss and mixture pick up, and shall be capable of exerting a ground pressure of at least 80 pounds per square inch.

3.3 APPLICATION

A. Preparation of Bituminous Material: Provide a continuous supply of the bituminous material to the mixer at a uniform temperature at all times; avoid local overheating.

B. Preparation of Aggregates:

1. Aggregates for pugmill mixtures shall be dried and heated to the required temperature.

Properly adjust the flame to avoid damage to the aggregate and to avoid soot on the aggregate.

2. Untreated aggregates for dryer-drum mixtures will not require prior preparation other than gradation control, except that those containing gravitational water shall be stockpiled and allowed to drain prior to mixing. Moisture in the final mixture shall be limited to 3 percent maximum.

3.4 MIXING

A. Combine aggregates in the mixer in the amount of each fraction of aggregates required to meet the job-mix formula. The bituminous material shall be measured or gauged and introduced into the mixer in the amount specified by the job-mix formula. Asphalt binder must be from 275 to 375 degrees F when mixed with aggregate. Aggregate must not be more than 325 degrees F.

B. After the required amounts of aggregate and bituminous material have been introduced into the mixer, the materials shall be mixed until a complete and uniform coating of the particles is achieved.

C. The bituminous material and aggregate for pugmill mixtures shall be introduced into the mixer within 35 degrees F of each other. Temperature of pugmill mixtures shall be controlled between 225 and 325 degrees F.

D. Material placed behind the paver shall not be less than 240 degrees F.

3.5 SPREADING AND FINISHING MIX

A. Place the mixture in the number of lifts and course, and to the compacted thickness for each lift as shown in the Drawings.

B. The mixture shall be laid upon an approved surface, spread, and struck off to the grade and elevation established. Use bituminous pavers to distribute the mixture either over the entire width or over such partial width as may be practicable.

C. At longitudinal joints, bond, compact, and finish the new HACP surface equal to the HACP surface against which it is placed. Longitudinal joints shall not occur within the width of a traffic lane. They shall be located at either the center line, lane line, or fog line unless approved by the

COR.

D. Where paving operations are on the present traveled roadway, and where the thickness of the pavement course being placed is greater than 1 inch, the Contractor shall arrange his paving operations so that there will be no exposed longitudinal joint between adjacent travel lanes at the end of a day's run.

E. On areas where irregularities or unavoidable obstacles make the use of mechanical spreading and finishing equipment impracticable, the mixture shall be spread, raked, and luted by hand tools.

For such areas, the mixture shall be dumped, spread, and screeded to give the required compacted thickness.

F. Transport and place the bituminous mixture on the roadway in a manner that will minimize segregation. Remove segregated areas behind the paver immediately and replace the segregated material with specification material before the initial rolling takes place. The removal and replacement of material that doesn’t meet the specifications or unacceptable work shall be accomplished at no additional expense to the Government.

G. Cover HACP if rain or cold air temperatures are encountered at any time between loading and placement.

H. Do not place HACP on wet pavement, frozen surfaces, or during rain or other adverse weather conditions.

I. HACP will be rejected before placing if one or more of the following is found:

• Below specified placing temperature limit

• Slumping or separating

• Solidifying or crusting

• Absorbing moisture Dispose of rejected loads at no additional cost to the Government.

J. Deliver the mixture to the paving machine at a rate that provides continuous operation of the paving machine, except for unavoidable delay or breakdown. If excessive stopping of the paving machine occurs during paving operations, the Engineer may suspend paving operations until the mixture delivery rate matches the paving machine operation.

K. Place bituminous material as continuously as possible. Rollers shall not pass over the unprotected end of a freshly laid mixture unless authorized by the COR. Form transverse joints by cutting back on the previous run to expose the full depth of the course. When directed, use a coat of bituminous material on the contact surfaces of all joints just before the additional mixture is placed against the previously rolled material.

L. Placing HACP Under Traffic:

a. Schedule work so that at the end of each working shift the full width of one travel lane has been paved.

b. Provide a temporary end panel at transverse joints that will be subject to public traffic for more than 24 hours. Construct an 8-foot long wedge (1V:50H taper rate). Construct, maintain, remove, and dispose of the temporary wedge at no additional cost to the Government. HACP for the temporary wedge will be paid for at the bid item price.

When paving resumes, remove the temporary end panel, clean the surface of all debris, and apply a tack coat to the vertical edge and the surface to be paved.

3.6 COMPACTING MIX

A. After the bituminous mixture has been spread and struck off, and surface irregularities have been adjusted, thoroughly and uniformly compact the mixture by rolling.

B. Roll surface when the mixture is in the proper condition and when the rolling does not cause undue displacement, cracking, or shoving.

C. The number, weight, and type of rollers furnished shall be sufficient to obtain the required compaction while the mixture is in a workable condition.

D. Begin rolling at the sides and proceed longitudinally parallel to the road centerline, each trip overlapping one-half the roller width, gradually progressing to the crown of the road. When paving in echelon or abutting a previously placed lane, roll the longitudinal joint first, then follow the regular rolling procedure.

E. Continue rolling until all roller marks are eliminated and the minimum density specified has been obtained.

F. Any displacement occurring as a result of the reversing of the direction of a roller, or from other causes, shall be corrected at once by the use of rakes and the addition of fresh mixture when required. Care shall be exercised in rolling not to displace the line and grade of the edges of the bituminous mixture.

G. To prevent adhesion of the mixture to the rollers, keep wheels properly moistened with water or water mixed with very small quantities of detergent or other approved material. Excess liquid will not be permitted.

H. Along forms, curbs, headers, walls, and other places not accessible to the rollers, thoroughly compact mixture with hand tampers or with mechanical tampers.

I. Remove a mixture that becomes loose and broken, mixed with dirt, or is in any way defective, and replace it with a fresh hot mixture; compact to conform with the surrounding area.

J. Backfill pavement edges with windrowed material or aggregate-topsoil mix so the finished adjacent grade is even with the pavement surface and there are no exposed pavement edges or drop-offs from the pavement surface.

3.7 ACCEPTANCE REQUIREMENTS

A. Surface Tolerance: The variation between any two contacts with the surface shall not exceed 3/16” inch in 10 feet as testing with a 10-foot straightedge. Test with the straightedge in travel lanes parallel to and perpendicular to the centerline in areas of pavement as directed by the COR.

Correct all humps or depressions exceeding the specified tolerance by removing defective work and replacing it with new material at no additional expense to the Government.

B. A uniform compacted thickness shall be obtained for each course equal to or greater than the thickness shown. Individual tests shall not vary by more than plus or minus 1/4 inch.

C. Density: Acceptable density of the in-place bituminous concrete pavement shall be 91 percent of the optimum values as determined from the job-mix formula. Field sampling and density determinations will be made by the Contractor in accordance with AASHTO T230-68, or an acceptable nuclear procedure, and results provided to the Contracting Officer within 2 days of the initial placement of asphalt pavement.

PART 4 MEASUREMENTS AND PAYMENT

Payment will be included in the Hot Asphalt Concrete Pavement bid item as described in Section 01270 Description of Bid Items. When RAP materials are used, measurement of the total asphalt quantity will be based on quality control tests. No separate or additional payment will be made for reconditioning existing roadway, leveling work, lime, QC testing, anti-stripping additives or other asphalt modifiers.

SECTION 0 17 70

PROJECT CLOSEOUT

PART 1 GENERAL

1 .1 DESCRIPTION

A. The work of this section consists of final cleanup, closeout submittals, and final inspection procedures.

PART 2 PRODUCTS

2 .1 CLEANING MATERIALS

A. As recommended by the manufacturer of surface to be cleaned.

PART 3 EXECUTION

3 .1 POSTED OPERATING INSTRUCTIONS

A. As specified in the individual sections. Furnish operating instructions attached to or posted adjacent to equipment. Include wiring diagrams, control diagrams, control sequence, start-up, adjustment, operation, lubrication, shut-down, safety precautions, procedures in the event of equipment failure, and other items of instruction recommended by the manufacturer.

3 .2 CLEANING

A. Before scheduling the final inspection, remove all tools, equipment, surplus materials, and rubbish.

Restore or refinish surfaces that are damaged due to work of this contract to original condition.

Remove grease, dirt, stains, foreign materials, and labels from finished surfaces. Thoroughly clean building interiors. Pick up all construction debris from the site. At the time of final inspection, the project shall be thoroughly clean and ready for use.

3 .3 PROJECT RECORD DRAWINGS

‐NIC

3 .4 CLOSEOUT SUBMITTALS

A. Submit before final inspection request.

1. Project Record Drawings: As specified above.

2. Guarantees and Bonds: As specified in individual sections.

3 .5 SUBSTANTIAL COMPLETION AND FINAL INSPECTION

A. When a project, or designated portion of the project, is substantially complete, request in writing a final inspection. Upon receipt of a written request that the project is substantially complete, the

Contracting Officer will proceed with an inspection within 10 days of receipt of the request or will advise the Contractor of items that prevent the project from being designated as substantially complete.

B. If, following final inspection, the work is determined to be substantially complete, the Contracting Officer will prepare a list of deficiencies to be corrected before final acceptance and issue a Letter of Substantial Completion. The contractor shall complete the work described on the list of deficiencies within 30 calendar days, as weather permits. If the Contractor fails to complete the work within this time frame, the Contracting Officer may either replace or correct the work with an appropriate reduction in the contract price or charge for re-inspection costs in accordance with the Inspection of Construction clause of the contract.

C. If, following final inspection, the work is not determined to be substantially complete, the Contracting Officer will notify the Contractor in writing. After completing the work, the Contractor shall request a new final inspection. All re-inspection costs may be charged against the Contractor in accordance with the Inspection of Construction clause of the contract.

3 .6 FINAL ACCEPTANCE OF THE WORK

A. After all deficiencies have been corrected, a Letter of Final Acceptance will be issued.

PART 4 MEASUREMENT AND PAYMENT

4 .1 PROJECT CLOSEOUT

A. Payment will be included in the bid item to which this work relates.

APPENDIX

CONTRACTOR'S Q.C. DAILY REPORT

REPORT NO. _________ SHEET 1 OF _________

PROJECT

CONTRACT NO.

DATE

PARK

CONTRACTOR'S REPRESENTATIVE ON THE JOB

WEATHER (Rain, Snow, Cloudy, Windy, etc.)

RAINFALL

Inches

TEMPERATUR

E

GROUND CONDITIONS (Dry, Damp, Wet, Frozen, etc.)

MAX.

MIN.

1. PRIME CONTRACTOR

NO. EMPLOYEES BY JOB CATEGORIES Hours HEAVY EQUIPMENT

ON JOB

NO.

UNITS

HRS. WORKING

YES NO Comments

WORK PERFORMED BY PRIME CONTRACTOR:

MATERIALS DELIVERED OFFICIAL VISITORS TO SITE

2A. SUBCONTRACTOR, _____________________________________________: (If more than one subcontractor use copies of following page.)

NO. EMPLOYEES BY JOB CATEGORIES Hours HEAVY EQUIPMENT

ON JOB

NO.

UNITS

WORK PERFORMED BY SUBCONTRACTOR:

3. SPECIFIC INSPECTIONS: (Inspections performed, results, and corrective actions)

4. TESTING: 1 Check if any testing was performed today. (Complete and attach Test Report Information Sheets.)

Type and Location of Testing:

5. VERBAL INSTRUCTION RECEIVED FROM GOVERNMENT ON CONSTRUCTION DEFICIENCIES OR RE-

TESTING REQUIRED:

6. REMARKS:

7. CERTIFICATION:

I certify that the above report is complete and correct and that I, or my authorized representative, have inspected all work performed this day by the prime contractor and each subcontractor and determined that all materials, equipment, and workmanship are in strict compliance with the plans and specifications except as may be noted above.

Contractor's Designated Quality Control Representative

SUBCONTRACTOR WORK CONTINUED:

CONTRACT NO. REPORT NO. _______

SHEET ____ OF ____

2 SUBCONTRACTOR,

NO. EMPLOYEES BY JOB CATEGORIES Hours HEAVY EQUIPMENT

ON JOB

NO.

UNITS

2 SUBCONTRACTOR,

ON JOB

NO.

UNITS

ON JOB

NO.

UNITS

ON JOB

NO.

UNITS

HRS. WORKING

YES NO COMMENT

S

TEST REPORT INFORMATION SHEET

CONTRACT NO. REPORT NO. _____________

SHEET _____ OF _________

1. Individual Making Inspection or Test:

2. Testing Laboratory; Name: Phone #:

Address:

3. Description of Work and Test Method:

4. Location of Samples and Tests or Inspections:

5. Specification Section:

6. Inspection or Test Data:

7. Test Results and Interpretations of Test Results:

8. Comments or Professional Opinion About Compliance of Inspected Work or Tested Work with contract Document Requirements:

9. Recommendations:

10. Corrective Actions Taken:

CERTIFICATION:

I certify that the above testing report is complete and correct and that all testing performed this day for this contract is in strict compliance with the plans and specifications except as noted above.

Signature of Inspector